OPX 1025 Optical PM Mass Monitor

Met One Instruments OPX 1025 User Manual

OPX 1025 particulate matter (PM) mass monitor is the world’s first PM mass monitor powered by the innovative RealPM algorithm, delivering real-time climate-adjusted particulate matter mass data in any environment. OPX 1025 provides reliable, real-time measurement of PM1, PM2.5, PM4, PM10, PM10-2.5, particle number concentration, and particle size histograms, all from a single instrument.

OPX 1025 is a US EPA Certified Federal Equivalent method for PM2.5, PM10, and PM10-2.5.

OPX 1025 isn’t just smart – it’s designed for operational efficiency, with minimal maintenance and consumable requirements. The sensor LED is even backed by a 10-year manufacturer’s warranty (parts only; field serviceable).

Welcome to automated, climate-adjusted PM Monitoring: OPX 1025, powered by RealPM.

Advanced Optical Particle Spectrometer: Polychromatic light source with 4,096 raw size bins, combined into 100 bins for mass conversion.

RealPM dynamic mass conversion algorithm: Size/density algorithm designed for high accuracy across varying environmental conditions.

Comprehensive PM Reporting: Simultaneous real-time PM1, PM2.5, PM4, PM10, and coarse fraction (PM10-2.5) plus particle count and size histograms.

US EPA Certified Federal Equivalent method for PM2.5, PM10, and PM10-2.5.

Controlled Sampling System: PM10 or TSP inlet, 16.67 LPM flow control, Smart Heater for humidity/temperature conditioning, and sheath flow optics protection.

High Sensitivity: Greater sensitivity than traditional continuous PM mass monitor methods.

User-Friendly Operation: Intuitive touchscreen interface with advanced diagnostics for quick troubleshooting.

Advanced Communications: Remote operation capability with cloud-based data access and integration with meteorological and other sensors.

Precision Calibration: Factory-calibrated against reference units; size accuracy verified with PSL and SigmaDust standards.

Low Maintenance: Minimal consumables required, and sheath-flow over optics reduces cleaning intervals.

Produced by an industry-leading ISO Certified facility.